function IsBlank(obj,msg)
	{
		if(Trim(obj.value) == "")
		{
			alert(msg);
			obj.focus();
			return false;
		}
		return true;
	}
	function IsEmail(obj, msgstr)
	{

		if(Trim(obj.value) == "")
		{
			alert("Please Enter Your Email Address.");
			obj.focus();
			return false;
		}
		else
		{
			if(obj.value.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) != -1)
				return true;
			else
			{
				alert(msgstr);
				obj.focus();
				return false;
			}
		}
	}
	function Trim(val)
	{
		return val.split(" ").join("");
	}